Butterfly sign (choroid plexus)

Dr Daniel J Bell and Dr Ayush Goel et al.

The butterfly sign refers to the normal appearance of the choroid plexuses on axial imaging of the fetal brain, commonly observed on the antenatal ultrasound. Its absence may suggest holoprosencephaly 1.

In the CNS, the term should not be confused with a butterfly glioma, which is a glioblastoma that crosses the midline via the corpus callosum, observed in a different age group. 

Inspired signs

Article information

rID: 41911
Section: Signs
Tag: refs, cases
Synonyms or Alternate Spellings:

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